How to read the band →
Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Miracle
Miracle has stayed fairly steady in American naming for generations. All-time it's been given to 22,006 U.S. babies, the 845th most common name by sound today, peaking at 902 in 2016, with 645 in 2025.
Miracle has no common alternate spellings by sound.
Rising